Add Varnish Monitoring to Server Density

Installation

• Configure your agent so that it knows about a plugin directory http://www.serverdensity.com/docs/agent/plugins/
• Move the Varnish.py into that directory
• Your Varnish instance will need to be running with a Management Port (http://www.varnish-cache.org/trac/wiki/ManagementPort)
• Edit plugin lines 15 and 16 to add your admin IP and Port.
• Restart the agent (service sd-agent restart)

• Head to https://youraccount.serverdensity.com/plugins/ and Add new plugin
• Add a plugin called Varnish
• Edit the Varnish plugin and enter the groups for the graphs below, sorry you have to do this, but there’s no way to suggest this layout in the plugin.

Title: Usage
requests
cache_hits
cache_hits_pass
cache_miss

Title: TotalBytesSent
sent_header
sent_body
sent_total

Title: Backend
backend_conn
backend_unhealthy
backend_busy
backend_fail
backend_recycle
backend_unused
backend_req

Title: Threads
threads_created
threads_running
threads_not_created
queued_requests

Title: CachePercentage
cache_percentage

• Enjoy Varnish stats in Server Density

Thanks

Muzpan for the initial Python to talk to Varnish.